Cov txheej txheem:

Peb tus yam ntxwv dav dav ntawm cov hlau yog dab tsi?
Peb tus yam ntxwv dav dav ntawm cov hlau yog dab tsi?

Video: Peb tus yam ntxwv dav dav ntawm cov hlau yog dab tsi?

Video: Peb tus yam ntxwv dav dav ntawm cov hlau yog dab tsi?
Video: Saib Mis paub Poj niam (hluas nkauj) tus yam ntxwv lub siab 2024, Kaum ib hlis
Anonim

Peb yam ntxwv ntawm cov hlau yog lawv zoo conductivity, malleability, thiab ci iab tsos. Hlau yog cov conductors zoo ntawm tshav kub thiab hluav taws xob, Tom qab ntawd, ib tug kuj yuav nug, dab tsi yog cov yam ntxwv ntawm cov hlau?

Cov hlau yog lustrous, malleable, ductile, zoo conductors ntawm kub thiab hluav taws xob. Lwm yam khoom muaj xws li: Lub Xeev: Cov hlau yog cov khoom nyob rau hauv chav tsev kub, tshwj tsis yog cov mercury, uas yog kua nyob rau hauv chav tsev kub (Gallium yog kua rau hnub kub).

Tsis tas li ntawd, dab tsi yog qhov tsis zoo ntawm cov hlau? Cov platinum, palladium, kub, thiab nyiaj yog cov tshuaj tiv thaiv qis heev. Cov hlau feem ntau yog malleable thiab ductile nyob rau hauv qhov uas txhais tau tias lawv tuaj yeem hloov mus rau hauv cov hlau thiab ntawv. Cov tshuaj nkig ua tsis yog muaj cov no yam ntxwv thiab yog li ntawd, brittleness yog tsis yog tus yam ntxwv ntawm hlau.

Cov lus nug tseem yog, dab tsi yog 5 yam ntxwv ntawm cov hlau?

  • Cov khoom siv hluav taws xob zoo thiab cov khoom siv hluav taws xob zoo.
  • Malleable - tuaj yeem raug ntaus rau hauv cov ntawv nyias.
  • Ductile - tuaj yeem ncab rau hauv cov hlau.
  • Muaj cov hlau nplaum.
  • Opaque raws li daim ntawv nyias.
  • Khoom ntawm chav tsev kub (tshwj tsis yog Hg).

Dab tsi yog 10 yam khoom ntawm cov hlau?

10 PHAU NTAWV QHIA TXOG HUAB TAIS

  • Cov hlau yog malleable: - Tag nrho cov hlau tuaj yeem raug ntaus rau hauv cov ntawv nyias nrog rauj xws li. kub, nyiaj aluminium thiab lwm yam.
  • Cov hlau yog ductile: - Cov hlau tuaj yeem ncab mus rau hauv cov xov hlau nyias.
  • Cov hlau yog cov conductors zoo ntawm tshav kub thiab hluav taws xob: - Tag nrho cov hlau yog cov conductors zoo ntawm tshav kub.

Pom zoo: